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The Characteristics of Insulation with Temperature Variations of $SF_{6}$  

이광식 (영남대학 전자정보공학부)
박광서 (영남대학 전기공학과)
박경태 (영남대학 전기공학과)
김이국 (경일대학 전기공학과)
박창기 (한국전력)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers C / v.52, no.8, 2003 , pp. 354-358 More about this Journal
Abstract
In this paper, insulations characteristics by temperature changes(＋50～-50[$^{\circ}C$]) of $SF_{6}$ gas in the experimental chamber were studied. From this result, at the low temperature, the breakdown voltage was increased with a drop of temperature and an increase of inner pressure in GIS. In addition the ability of insulation of liquid $SF_{6}$ was higher than that of the highly pressurized $SF_{6}$ gas. That is, with progress of low temperature, the main reason of breakdown was not liquefaction of $SF_{6}$ but rapid decrease of inner pressure. This study will come in greatly handy for the insulation design of GIS in a hard cold region
Keywords
GIS; liquid $SF_{6}$; breakdown voltage; insulation; low temperature;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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